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Most pedestrian detection algorithms only provide the object region instead of the actual body segmentation in video. For reducing the large number of redundant information and extracting a clear contour and texture feature of an up-right person, a superpixel segmentation algorithm with region correlation saliency analysis is proposed from coarse to fine cutting without any prior information. This...
Photonic generation of a linear-frequency microwave waveform with ultra-wide frequency tunable range based on dispersion-compensated optoelectronic oscillator (DCOEO) is proposed and experimentally demonstrated. The microwave carrier frequency of the generated linear-frequency microwave waveform varies from 4 GHz to 45 GHz.
For the pedestrian tracking failure problems of the multiple concurrent particle filter with partial occlusion in active safety, this paper proposed a fuzzy decision algorithm to decrease the error probability when the multiple deformable parts are used to tracking an up-right person in the video frames. This algorithm applies the multiple adaptive color-based particle filter trackers to trace the...
Point sets registration, also known as point matching, is to find the one-to-one correspondence between two point sets as well as the related transformation. In comparison with most state-of-the-arts handling the rigid transformation between two point sets, in this paper, we focus on the more complex non-rigid transformation by considering it as a linear assignment-least square problem. We design...
With surface aging and natural disasters, power transmission line often has broken strand fault which presents partial discharge and temperature rising. Infrared thermography is a new method to detect the temperature rising fault. Aiming at the temperature rising fault, a method based on infrared image for power transmission line detection and fault diagnosis is proposed. First, we convert infrared...
In the paper, a tricolor attenuation theory is introduced, a new algorithm which transform a color face image into a gray one which is illumination invariant based on the tricolor attenuation theory is proposed. The color face image is segmented into shadow part and non shadow part using tricolor attenuation theory, then computing the change rate between shadow region and non shadow region in each...
The electromechanical energy conversion efficiency of synchronous induction launcher (SIL) is an important indicator for the EM launcher. The changing of the launcher structure will directly affect the efficiency and determine the performance of SIL. In order to improve launcher performance, the multi-stage coupling calculation model of SIL is established. Based on uniform design method (UDM), launcher...
This paper deals with a dynamical laser antimissile problem. The laser antimissile system can destroy many targets in a short time, the attacking sequence plays an important role in practical implement. This laser antimissile problem can be seen as a dynamical traveling salesman problem. This paper introduces an enhancing algorithm to solve this problem based on three exchange strategies - the near...
Illumination variation is one of the critical factors affecting face recognition rate. In the paper, we propose a novel Retinex method based on bilateral filtering to compensate the illumination for face image. The proposed method estimates the illumination using the bilateral filtering, and applies the Retinex theory to obtain the reflectance image which is illumination invariant. The experimental...
Corona phenomenon of Ultra High Voltage DC in high altitude region is more serious, and corresponding electromagnetic environment is more severe as well. Radio Interference is the most important consideration during the design and operation. Characteristics of RI and its influence factors were studied based on an UHVDC test line with an altitude of 2100 m in the National Engineering Laboratory for...
The corona performance and the electromagnetic environment of the transmission system has become a crucial issue that has been taken into consideration in the line design, and among which audible noise (AN) is one of the most important factors. The wind in the high altitude area is mostly strong, and could greatly influence the AN. This paper, based on the high altitude HDVC test line, studied the...
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